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Sockets/Plugs & Wiring Configurations |
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KDW32 
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Joined: 09 April 2010 Location: Green Hell Status: Offline Points: 437 |
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 Posted: 27 May 2023 at 1:38pm |
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That's been suggested a few times to SnailSpace. It really is good advice.
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SnailSpace
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Joined: 08 December 2022 Status: Offline Points: 193 |
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Posted: 27 May 2023 at 2:23pm |
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I had a quick look but I was a bit blinded by the science.
For me at this stage, I need an idiots guide and to ask basic questions! Videos on YouTube can do only so much but it’s the personal knowledge/experience I’m finding most helpful and informative. Once it’s wired and running I will find the time and a quiet place to delve into amp/dsp manuals and the Yamaha guide. Thanks though
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Conanski
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Joined: 26 January 2006 Location: Canada Status: Offline Points: 2426 |
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Posted: 28 May 2023 at 2:13am |
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 Lets try this... Amplifiers produce power(voltage really but lets keep is simple for now).. speakers consume it. An 8ohm load is very safe for a pro power amp, it's not hard to push a small amp like this to it's limits but it's nearly impossible to blow it up under these conditions.. it will protect itself and hopefully the person running the system will hear something distorting and pull back on the controls a little. A speaker will work just fine with any amount of power from miliwatts up to it's maximum peak handling capacity as long as the mechanical or electrical limitations of the driver are not exceeded. Key thing to note... for low frequency drivers and those you have in particular they will reach a mechanical limit long before hitting an electrical limit, so forget you ever saw the those peak power handling specs.
When it comes to a multiway speaker system like yours the only thing that matters is producing enough SPL in each bandwidth to compliment all the others, so that is what you need to focus on. You have a bunch of mismatched cabs and drivers so you won't be pushing anything except the subs to thier limits, I know this from experience and you will soon too.
Edited by Conanski - 28 May 2023 at 2:33am |
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SnailSpace
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Posted: 28 May 2023 at 11:37am |
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Thanks yeah that makes sense Conanski.
PS I will do my homework when all the physical work is done…promise
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SnailSpace
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Posted: 29 May 2023 at 11:05pm |
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I think I’ve sourced some decent amount of cable, 2 core shielded which already has some speakons on also, when I’ve asked what AWG it is they said they don’t know but has sent a photo and it’s 4mm in diameter (multi stranded twisted copper). Now when I’ve looked and put it in a mm to AWG calculator it has come back as 8/9AWG So after looking on YouTube I realised you measure by the strand for stranded then so a calculation? As it’s unlikely the seller has an AWG tool the only info I have is that it is multi stranded and when put on a ruler it has a diameter of 4mm? Is there a way of knowing the AWG? Edited by SnailSpace - 29 May 2023 at 11:22pm |
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cravings
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Joined: 30 January 2007 Location: Ireland Status: Online Points: 7412 |
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Posted: 29 May 2023 at 11:15pm |
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a lot of people on here are in europe where we don't encounter AWG measurments much, and aren't really familiar with it.. but 4mm cable is more than enough for anything you should be doing.
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SnailSpace
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Posted: 29 May 2023 at 11:30pm |
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That’s what’s been confusing me is not all manufacturers put the AWG info on. But then I found stranded wire also has another calculation cross sectional area of each strand x amount of strands! Obviously it being audio you need stranded for flexibility but basing it on it being OFC copper 4mm diameter multi strand is there a UK/European system?
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cravings
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Joined: 30 January 2007 Location: Ireland Status: Online Points: 7412 |
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Posted: 29 May 2023 at 11:40pm |
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i'm doing this 20 years or more.. have loads of systems and hundreds of meters of adequate 4 core cable of either 2.5mm or 4mm CSA.. and i have no idea about strand counts and have never had any reason to know... you're overthinking weird details here in my opinion.. rubberised cable is nice.
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RoadRunnersDust
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Joined: 03 December 2013 Location: United Kingdom Status: Offline Points: 482 |
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Posted: 30 May 2023 at 12:41am |
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4mm^2 is what you need, it refers to the 'Cross Sectional Area' (CSA) of the conductor.
The diameter of the conductor is a totally different measurement and of no real use to you. Stranded wire is often quoted as the diameter per strand x number of strands. You will need to use some PiR^2 sorts of maths to use that to work out the CSA. You also do not want shielded cable for speaker cable. If what you are looking at is shielded then it suggests it is massively inappropriate for use. |
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SnailSpace
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Posted: 30 May 2023 at 1:03am |
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RoadRunnersDust: Sorry yeah don’t know why I put ‘shielded’. I knew you mentioned 4mm2 but yes doing it by CSA on the online calculator would make it around 11awg.
Cravings: It’s my first system so I probably am overthinking it but when I listened to the Life in Dub Podcast (Steve Vibronics well worth a listen) I heard so many tales of blown amps & speakers I’m double checking
and taking it easy out the blocks…’Measure twice cut once!’ |
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RoadRunnersDust
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Posted: 30 May 2023 at 1:11am |
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mm^2 and AWG don't match up perfectly and AWG generally skips the odd sizes for larger conductors.
12AWG is more accurately about 3mm^2 so when you try to convert 4mm^2 into AWG you often get an answer of 10AWG (~5mm^2 but actually available) or 11AWG which is technically accurate but nearly impossible to buy in any useful format. For your purposes whilst 12AWG may be perfectly fine, you're basically trying to order cable using the wrong language for your region. You want to be looking for 4mm^2. There really isn't any way around the fact that it's not cheap either. It'll either be the proper stuff and fit for use or it'll be shite |
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cravings
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Joined: 30 January 2007 Location: Ireland Status: Online Points: 7412 |
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Posted: 30 May 2023 at 9:03am |
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red lights pretty much mean stop. that's a basic that a lot of people don't seem to grasp. |
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4D wrote: